Surface-modified piezoelectric copolymer poly(vinylidene fluoride–trifluoroethylene) supporting physiological extracellular matrixes to enhance mesenchymal stem cell adhesion for nanoscale mechanical stimulation

Hannah Donnelly, Mark R. Sprott, Anup Poudel, Paul Campsie, Peter Childs, Stuart Reid, Manuel Salmerón-Sánchez, Manus Biggs, Matthew J. Dalby

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)
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Abstract

There is an unmet clinical need to provide viable bone grafts for clinical use. Autologous bone, one of the most commonly transplanted tissues, is often used but is associated with donor site morbidity. Tissue engineering strategies to differentiate an autologous cell source, such as mesenchymal stromal cells (MSCs), into a potential bone-graft material could help to fulfill clinical demand. However, osteogenesis of MSCs can typically require long culture periods that are impractical in a clinical setting and can lead to significant cost. Investigation into strategies that optimize cell production is essential. Here, we use the piezoelectric copolymer poly(vinylidene fluoride–trifluoroethylene) (PVDF-TrFE), functionalized with a poly(ethyl acrylate) (PEA) coating that drives fibronectin network formation, to enhance MSC adhesion and to present growth factors in the solid phase. Dynamic electrical cues are then incorporated, via a nanovibrational bioreactor, and the MSC response to electromechanical stimulation is investigated.
Original languageEnglish
Pages (from-to)50652-50662
Number of pages11
JournalACS Applied Materials and Interfaces
Volume15
Issue number44
Early online date17 Sept 2023
DOIs
Publication statusPublished - 8 Nov 2023

Keywords

  • tissue engineering
  • osteogenesis
  • cell adhesion
  • fibronectin
  • mesenchymal stem cells
  • polymers
  • piezoelectric

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